Cardinal Tetras Freshwater Fish: Colorful & Peaceful

Overview

Cardinal Tetras Fishes are prized for their striking appearance and social behavior, making them a popular choice for community aquariums. They belong to the Characidae family and are closely related to the Neon Tetra (Paracheirodon innesi), another beloved freshwater species.

Characteristics

• Size: Cardinal Tetras typically grow up to 4 centimeters (about 1.5 inches) in length, showcasing a slender body adorned with vibrant colors.
• Coloration: Their bodies are distinguished by a bright neon blue stripe that runs horizontally from the nose to the base of the tail, contrasted against a lower red stripe that spans from the middle of the body to the tail fin.
• Behavior: These fish are peaceful and thrive in schools. Keeping them in groups of 10 to 15 individuals mimics their natural habitat and reduces stress. In smaller groups, Cardinal Tetras may become timid and hide.

Aquarium Setup

Tank Size and Environment

• Tank Size: A minimum tank size of 20 liters (approximately 5 gallons) is recommended for a school of Cardinal Tetras. Ensure the tank is well-covered with a lid, as these fish are known to jump when stressed.
• Water Conditions: Cardinal Tetras prefer slightly acidic to neutral water with a pH range between 5.5 to 7.0 and a temperature range of 22°C to 28°C (72°F to 82°F). They thrive in soft, acidic water similar to their natural habitat.
• Aquascape: Provide a well-planted aquarium with floating plants, driftwood, and dim lighting to replicate their native blackwater environment. A dark substrate complements their vibrant colors and reduces stress.

Feeding

This fish is omnivorous and accept a variety of feeds:

• Diet: They readily consume high-quality flake food, small pellets, and frozen or live foods such as bloodworms, brine shrimp, and daphnia. A balanced diet should be given to maintain their health and vibrant coloration.
• Feeding Frequency: Feed Cardinal Tetras small portions of food twice daily. Take back uneaten food promptly from the tank to maintain water quality.

Cost and Accessibility

Cardinal Tetras are readily available in pet stores and online retailers:

• Cost: Prices for Cardinal Tetras can start from $7 per fish, depending on their size, coloration, and the seller. They are affordable and accessible for aquarists looking to add color and activity to their aquariums.

Maintenance Tips

Water Quality and Tank Mates

Cardinal Tetras require specific care to thrive:

• Water Parameters: Monitor and maintain stable water conditions. Regular water changes (approximately 25% every two weeks) help remove accumulated waste and maintain optimal water quality.
• Tank Mates: Choose peaceful tank mates such as small tetras, rasboras, dwarf cichlids, and peaceful bottom-dwellers like Corydoras catfish. Avoid aggressive or nippy fish that may stress or harm Cardinal Tetras.

FAQs about Cardinal Tetras

1. Can Cardinal Tetras live with Neon Tetras?

Yes, Cardinal Tetras and Neon Tetras can coexist peacefully in the same aquarium. They share similar water parameter preferences and complement each other with their vibrant colors.

2. How many Cardinal Tetras should be kept together?

To thrive and exhibit natural schooling behavior, keep Cardinal Tetras in groups of at least 10 to 15 individuals. Larger schools create a more visually appealing display and reduce stress.

3. Do Cardinal Tetras need a heater?

Yes, Cardinal Tetras require stable water temperatures between 22°C to 28°C (72°F to 82°F). A heater is recommended to maintain their preferred temperature range, especially in cooler environments.

4. What is the lifespan of Cardinal Tetras Fish?

With proper care, Cardinal Tetras can live up to 3 to 5 years in captivity. Providing a well-maintained aquarium environment and a balanced diet contribute to their longevity.

5. Are Cardinal Tetras suitable for beginners?

Yes, Cardinal Tetras are suitable for beginner aquarists due to their hardiness, peaceful nature, and relatively low maintenance requirements. They are an excellent choice for those new to keeping freshwater fish.

6. What should I feed Cardinal Tetras?

Offer Cardinal Tetras a varied diet that includes high-quality flake food, small pellets, and occasional treats of live or frozen foods. Ensure the food is small enough for them to consume easily.

7. How do Cardinal Tetras breed?

Cardinal Tetras are egg-scatterers that spawn in soft, acidic water conditions. Breeding them in captivity may require a separate breeding tank with plants or a spawning mop where eggs can be deposited and protected.

Conclusion

Cardinal Tetras are prized for their beauty, peaceful temperament, and social behavior, making them a delightful addition to freshwater community aquariums. By providing suitable tank conditions, a balanced diet, and compatible tank mates, aquarists can enjoy the vibrant colors and lively nature of these beloved aquarium fish.